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Article
Publication date: 24 October 2023

Muhammad Naeem Aslam, Arshad Riaz, Nadeem Shaukat, Muhammad Waheed Aslam and Ghaliah Alhamzi

This study aims to present a unique hybrid metaheuristic approach to solving the nonlinear analysis of hall currents and electric double layer (EDL) effects in multiphase wavy…

Abstract

Purpose

This study aims to present a unique hybrid metaheuristic approach to solving the nonlinear analysis of hall currents and electric double layer (EDL) effects in multiphase wavy flow by merging the firefly algorithm (FA) and the water cycle algorithm (WCA).

Design/methodology/approach

Nonlinear Hall currents and EDL effects in multiphase wavy flow are originally described by partial differential equations, which are then translated into an ordinary differential equation model. The hybrid FA-WCA technique is used to take on the optimization challenge and find the best possible design weights for artificial neural networks. The fitness function is efficiently optimized by this hybrid approach, allowing the optimal design weights to be determined.

Findings

The proposed strategy is shown to be effective by taking into account multiple variables to arrive at a single answer. The numerical results obtained from the proposed method exhibit good agreement with the reference solution within finite intervals, showcasing the accuracy of the approach used in this study. Furthermore, a comparison is made between the presented results and the reference numerical solutions of the Hall Currents and electroosmotic effects in multiphase wavy flow problem.

Originality/value

This comparative analysis includes various performance indices, providing a statistical assessment of the precision, efficiency and reliability of the proposed approach. Moreover, to the best of the authors’ knowledge, this is a new work which has not been explored in existing literature and will add new directions to the field of fluid flows to predict most accurate results.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

Book part
Publication date: 5 April 2024

Alecos Papadopoulos

The author develops a bilateral Nash bargaining model under value uncertainty and private/asymmetric information, combining ideas from axiomatic and strategic bargaining theory…

Abstract

The author develops a bilateral Nash bargaining model under value uncertainty and private/asymmetric information, combining ideas from axiomatic and strategic bargaining theory. The solution to the model leads organically to a two-tier stochastic frontier (2TSF) setup with intra-error dependence. The author presents two different statistical specifications to estimate the model, one that accounts for regressor endogeneity using copulas, the other able to identify separately the bargaining power from the private information effects at the individual level. An empirical application using a matched employer–employee data set (MEEDS) from Zambia and a second using another one from Ghana showcase the applied potential of the approach.

Content available
Book part
Publication date: 4 March 2024

Abstract

Details

Managing Destinations
Type: Book
ISBN: 978-1-83797-176-3

Article
Publication date: 9 January 2024

Jian Kang, Libei Zhong, Bin Hao, Yuelong Su, Yitao Zhao, Xianfeng Yan and Shuanghui Hao

Most of the linear encoders are based on optics. The accuracy and reliability of these encoders are greatly reduced in polluted and noisy environments. Moreover, these encoders…

Abstract

Purpose

Most of the linear encoders are based on optics. The accuracy and reliability of these encoders are greatly reduced in polluted and noisy environments. Moreover, these encoders have a complex structure and large sensor volume and are thus not suited to small application scenarios and do not have universality. This paper aims to present a new absolute magnetic linear encoder, which has a simple structure, small size and wide application range.

Design/methodology/approach

The effect of swing error is analyzed for the sensor structural arrangement. A double-threshold interval algorithm is then proposed to synthesize multiple interval electrical angles into absolute angles and convert them into actual displacement distances.

Findings

The final linear encoder measurement range is 15.57 mm, and the resolution reaches ± 2 µm. The effectiveness of the algorithm is demonstrated experimentally.

Originality/value

The linear encoder has good robustness, and high measurement accuracy, which is suitable for industrial production. The linear encoder has been mass-produced and used in an electric power-assisted braking system.

Details

Sensor Review, vol. 44 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Book part
Publication date: 11 December 2023

Ayyaz Mallick

This chapter explores the writings of Pakistani sociologist Hamza Alavi, especially on the post-colonial state, ethnicity, peasantry and kinship relations. In contradistinction to…

Abstract

This chapter explores the writings of Pakistani sociologist Hamza Alavi, especially on the post-colonial state, ethnicity, peasantry and kinship relations. In contradistinction to most (partial) uptakes of Alavi, I evaluate his work as a whole in order to shed light on its continuities and discontinuities. I demonstrate both the strengths and pitfalls of Alavi's theorisation of the post-colonial state, mode of production and ethnicity by placing him in context of wider Marxist debates at the time. I then suggest that Alavi's other work (e.g. on the peasantry and kinship relations) may serve to complement the weaknesses of the former. Thus, by reading Alavi contra Alavi, I advocate for an ‘integral’ perspective on the relations between civil and political society, arguing for a conjunctural awareness of mediations between the same, and their imbrications with differentiated relations of class, ethnicity and kinship.

Details

Marxist Thought in South Asia
Type: Book
ISBN: 978-1-83797-183-1

Keywords

Article
Publication date: 5 October 2022

Divyang Purohit and Rachita Jayswal

With changing employment conditions, technological advancement, frequent manpower reduction and global competition, the relevance of the protean and boundaryless career concepts…

Abstract

Purpose

With changing employment conditions, technological advancement, frequent manpower reduction and global competition, the relevance of the protean and boundaryless career concepts is increasing. With this, the country’s culture plays a pivotal role in career choice. The purpose of this paper is to develop and validate protean and boundaryless career scales for college passing out students and in the Indian context. The protean career scale was measured by self-directed and values-driven dimensions, while the boundaryless career scale was measured by boundaryless mindset and organizational mobility preference.

Design/methodology/approach

The first step involved defining construct and determining face validity. The data collected via questionnaire from India’s final year engineering students were subjected to exploratory factor analysis and confirmatory factor analysis in the second and third steps, respectively. Finally, the nomological validity was tested by establishing the relationship between factors influencing career choice and newly developed protean and boundaryless career.

Findings

The result suggested using a two-factor model with a protean career (combining self-directed and values-driven items) and a boundaryless career as a separate construct for college passing out students.

Research limitations/implications

The developed scale has nine items that can be used to conduct surveys at the time of campus hiring by academic scholars, HR managers, and practitioners who are working on the identification, development and management of human talent as a part of any human resource management system.

Originality/value

To the best of the authors’ knowledge, this is the first approach to developing the protean and boundaryless career scale for college passing out students and in the Indian context which can be replicable for South Asian countries.

Details

European Journal of Training and Development, vol. 48 no. 1/2
Type: Research Article
ISSN: 2046-9012

Keywords

Book part
Publication date: 30 October 2023

Martha Kakooza and Sean Robinson

As a workplace, Higher Education has long been spatially socialized as a heteronormative with counter spaces (LGBTQ resource centers) in which assumptions about an individual's…

Abstract

As a workplace, Higher Education has long been spatially socialized as a heteronormative with counter spaces (LGBTQ resource centers) in which assumptions about an individual's sexuality have been assumed as heterosexual or gay/lesbian pushing mononormativity. This study focused on the narratives of six bisexual faculty and staff to uncover how mononormativity is (re)produced in the workplace. We analyze the ways in which bisexual faculty and staff experience an unevenness of power in communicating their bi identity. We drew on Lefebvre's (1991) theory to understand how the social workplace is sexualized presenting our findings through an ethnodrama.

Book part
Publication date: 13 December 2023

Monique N. Golden, Paul Singleton, Dakota W. Cintron, Michael Reid and Erik M. Hines

A Legacy Community is a living and learning community supported by broader institutional departments (e.g., student affairs, academic affairs, foundation, and alumni affairs) that…

Abstract

A Legacy Community is a living and learning community supported by broader institutional departments (e.g., student affairs, academic affairs, foundation, and alumni affairs) that dedicate resources, opportunities, and supports intended to: (a) undo legacies of educational disparities that Black/African American males have historically witnessed and (b) build capacity for students engaged in these communities (i.e., Black/African American males) to create and leave positive legacies on their terms. In this qualitative study of Black and African American undergraduate male living and learning community (LLC) participants at a primarily white institution (Legacy House), we investigate the LLC program elements that impact participants' educational and social experiences, and foster pathways for student legacy building. Legacy house participants describe brotherhood, sense of belonging, and leaving a legacy as elements that enable positive student academic and social outcomes, campus involvement, and career readiness.

Details

Black Males in Secondary and Postsecondary Education
Type: Book
ISBN: 978-1-80455-578-1

Keywords

Open Access
Article
Publication date: 22 February 2024

Juan A. Sanchis Llopis, Juan A. Mañez and Andrés Mauricio Gómez-Sánchez

This paper aims to examine the interrelation between two innovating strategies (product and process) on total factor productivity (TFP) growth and the dynamic linkages between…

Abstract

Purpose

This paper aims to examine the interrelation between two innovating strategies (product and process) on total factor productivity (TFP) growth and the dynamic linkages between these strategies, for Colombia. The authors first explore whether ex ante more productive firms are those that introduce innovations (the self-selection hypothesis) and if the introduction of innovations boosts TFP growth (the returns-to-innovation hypothesis). Second, the authors study the firm’s joint dynamic decision to implement process and/or product innovations. The authors use Colombian manufacturing data from the Annual Manufacturing and the Technological Development and Innovation Surveys.

Design/methodology/approach

This study uses a four-stage procedure. First, the authors estimate TFP using a modified version of Olley and Pakes (1996) and Levinsohn and Petrin (2003), proposed by De Loecker (2010), that implements an endogenous Markov process where past firm innovations are endogenized. This TFP would be estimated by GMM, Wooldridge (2009). Second, the authors use multivariate discrete choice models to test the self-selection hypothesis. Third, the authors explore, using multi-value treatment evaluation techniques, the life span of the impact of innovations on productivity growth (returns to innovation hypothesis). Fourth, the authors analyse the joint likelihood of implementing process and product innovations using dynamic panel data bivariate probit models.

Findings

The investigation reveals that the self-selection effect is notably more pronounced in the adoption of process innovations only, as opposed to the adoption of product innovations only or the simultaneous adoption of both process and product innovations. Moreover, our results uncover distinct temporal patterns concerning innovation returns. Specifically, process innovations yield immediate benefits, whereas implementing both product innovations only and jointly process and product innovations exhibit significant, albeit delayed, advantages. Finally, the analysis confirms the existence of dynamic interconnections between the adoption of process and product innovations.

Originality/value

The contribution of this work to the literature is manifold. First, the authors thoroughly investigate the relationship between the implementation of process and product innovations and productivity for Colombian manufacturing explicitly recognising that firms’ decisions of adopting product and process innovations are very likely interrelated. Therefore, the authors start exploring the self-selection and the returns to innovation hypotheses accounting for the fact that firms might implement process innovations only, product innovations only and both process and product innovations. In the analysis of the returns of innovation, the fact that firms may choose among a menu of three innovation strategies implies the use of evaluation methods for multi-value treatments. Second, the authors study the dynamic inter-linkages between the decisions to implement process and/or product innovations, that remains under studied, at least for emerging economies. Third, the estimation of TFP is performed using an endogenous Markov process, where past firms’ innovations are endogenized.

Details

Applied Economic Analysis, vol. 32 no. 94
Type: Research Article
ISSN: 2632-7627

Keywords

Content available
Book part
Publication date: 24 October 2023

Rodanthi Tzanelli

Abstract

Details

The New Spirit of Hospitality
Type: Book
ISBN: 978-1-83753-161-5

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